It has a history of producing highly respected instruments; in 1845, it was granted the status of official piano maker to the Emperor of Austria.

Then he traveled as a journeyman to England, France and Germany, returning to Vienna in 1832 to carry on the piano business under the Schweighofer name.

Johann Michael Schweighofer applied enhanced knowledge and techniques diligently to the piano manufacture, leading to the winning of the gold medal at the Vienna exhibition of 1845.

Hof-Pianoforte-Fabrikanten" by the Viennese imperial court and in 1873 it received the Honorary diploma of the Vienna World Exhibition.

1938 Karbach and Kohn, who were Jewish, were expropriated under the Nazi regime and the company was subsequently led by Friedrich Ehrbar jr., another Viennese piano maker, until 1940 when it was closed.

Throughout its long history, the company remained committed to the highest standards and incorporated new inventions in their pianos earlier than other Austrian piano makers (such as duplex scaling, Anglo-German and double escapement repetition actions, full cast iron frames etc.)